Add files using upload-large-folder tool

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statistic.py

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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import os
+import librosa
+from collections import Counter
+from tqdm import tqdm
+import sys
+
+def is_leaf_dir(path):
+    """判断是否为最原子的子文件夹（无子文件夹）"""
+    for item in os.listdir(path):
+        if os.path.isdir(os.path.join(path, item)):
+            return False
+    return True
+
+
+def get_wav_length(path):
+    try:
+        y, sr = librosa.load(path, sr=None, mono=True)
+        return round(len(y) / sr)
+    except Exception as e:
+        print(f"读取失败: {path} 错误: {e}")
+        return None
+
+
+def main(noise_root):
+    noise_root = os.path.abspath(noise_root)
+
+    print("扫描所有 leaf（最原子）子文件夹...\n")
+    leaf_dirs = []
+
+    # 遍历 noise 根目录下所有文件夹
+    for dataset in os.listdir(noise_root):  # MUSAN、DEMAND、ESC50 …
+        dataset_path = os.path.join(noise_root, dataset)
+        if not os.path.isdir(dataset_path):
+            continue
+
+        # 深度遍历，找所有最原子的子文件夹
+        for root, dirs, files in os.walk(dataset_path):
+            if is_leaf_dir(root):
+                leaf_dirs.append(root)
+
+    print("发现的 leaf 文件夹：")
+    for d in leaf_dirs:
+        print(" -", d)
+
+    print("\n开始统计...\n")
+
+    all_results = {}
+
+    for leaf in leaf_dirs:
+        counter = Counter()
+        wav_count = 0
+
+        # 遍历该 leaf 下的所有 wav
+        for f in tqdm(os.listdir(leaf), desc=f"[{leaf}]"):
+            if not f.lower().endswith(".wav"):
+                continue
+
+            wav_count += 1
+            path = os.path.join(leaf, f)
+            L = get_wav_length(path)
+            if L is not None:
+                counter[L] += 1
+
+        all_results[leaf] = (wav_count, counter)
+
+    # 打印结果
+    print("\n============== 统计结果 ==============\n")
+
+    for leaf, (cnt, dist) in all_results.items():
+        print(f"📁 {leaf}")
+        print(f"  WAV 数量：{cnt}")
+        print("  时长分布（秒）：")
+        for L in sorted(dist):
+            print(f"    {L:2d}s : {dist[L]}")
+        print()
+
+    print("统计完成！")
+
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("用法: python stats_leaf_folders.py <noise根目录>")
+        print("示例: python stats_leaf_folders.py noise")
+        sys.exit(1)
+
+    main(sys.argv[1])